Pattern mechanism for crochet knitting machines



June 9, 1931. s, BROADWIN 1,808,882

PATTERN MECHANISM FOR CROCHET KNITTING MACHINES Filed NOV. 14, 1929 I Ogz -Q/ VENT R a chain wherein the Patented June 9, 1931 SAMPSON BROADWIN', OF BROOKLYN, NEW YORK PATTERN IVIECI-IANISM FOR Application filed November 14, 1929.

The device, the subject of this invention, is a pattern mechanism, and more particularly the chain operation of that mechanism, and the object of the invention is to provide pins may be very readily changed.

Another object is to provide means for limiting the wear of the pins, and another object is to provide means whereby the pins are retained reliably in position, and yet under such conditions that they may be withdrawn, and a new pin inserted, and at will.

The following is what I consider the best means of carrying out my invention, and the accompanying drawings should be referred to for a complete understanding of the specification which follows.

In the drawings Fig. 1 is a plan view of a single link,

Fig. 2 a side elevation thereof,

Fig. 3 a sectional view of the link, with a pin in position,

Fig. 4 a plan view of a plurality of links,

Fig. 5 an enlarged view of a pin, and

Fig. 6 an enlarged sectional view of a socket.

Similar reference numerals indicate like parts in all the figures where they appear.

The links of my device will be formed of cast aluminum, and I prefer the use of such material. Each link is an oblong member having a plurality of bosses extending upon one side of the link. The bosses are shown at l, 2, 3, 4, 5, 6, 7 and 8, and while I have shown eight bosses, I have shown them merely because of the reason that the link that I have shown is a standard link, and eight pins are usually provided in a standard link.

The bosses are each drilled for the reception of socket members, the socket member being arranged in each boss, and projecting upward therefrom. These socket members, which should be of steel, are forced into properly prepared holes in the bosses. The socket members are indicated at 9, 10, 11, 12, 13, 14, 15 and 16.

Each link is provided with a plurality of lugs, and it will be noted that the space between the lugs 17 and 18, is greater than onocnnrxlvrrrme MACHINES.

Serial No. 407,088.

the space'between the lugs 19 and 20. The

lugs are perforated for the receptio oining pins, as shown at 21 and these pins may each ter pm, as shown at 23 and 24.

n of ad- 22, and

be provided with a cot The reason for the difference in spacing of the lugs is fully demonstrated in Fig. 4 of the drawing, the lugs 17 and 18 ending outprogressive lugs 19 and 20 side of the next of the next progressive link.

The ribs, as shown at 25, and extending between the bosses are strengthening ribsonly.

bers, one of which is tron, 111 F 1g. provided with 6. This socket me I call special attention to the socket memshown in enlarged secmber is a perforation 27, having an enlarged diameter at the lowermost end, as

shown at 28.

The

pin shown in Fig. 5, is provided with a slot 29 extending inward from the lower rovide a 31 restis retained upon pin 34 by the expansion of this portion, due to the slot 29.

The washer is of a diameter about the top of the socket, and serves to undue wear, because of the operati sure which is applied to the top 2 pin 34.

It will of course be understood that of different equal to prevent ve pres- 6 of the pins lengths are provided, and that my device is so constructed that different length pins yet in such reliably held bly removed therefrom.

In Fig. 3, I show only tion, that pins may be inserted into all a manner that the pin one pin can be substituted readily, and

will be in its socket, except when forciin posibut it will of course be understood or any of the sockets, as shall be required by the particular pattern which duce.

For ease of insertion of the pins,

it is desired to prothe ends of the sockets may each be counter-sunk, as

shown in Fi 3.

Having carefully and fully descr ibed my away from invention, what I claim and desire to secure by Letters Patent is 1. In a pattern mechanism for crochet knitting machines, a plurality of links, bosses formed thereon, a socket engaged in each said boss each said socket having a perforation of two diameters extending therethrough, a pin arranged in each said socket, each said pin being provided with an expansible means for retaining the pin in the socket and an enlarged head adapted to engage in that part of said perforation having the larger diameter.

2. A pattern mechanism for crochet machines, including a socket provided with a perforation having two diameters, a pin adapted to be received in said perforation, said pin being provided with an elongated saw-kerf, a wear disk upon said pin and both ends of said saw-kerf.

3. In a pattern mechanism for crochet machines, a pin formed of two or more diameters, a saw-kerf in a small diameter and extending into a larger diameter, a wear plate upon said pin and in combination therewith, a socket provided with a perforation having two diameters, the enlargement of said pin being adapted to engage in said larger diameter, to be retained therein.

SAMPSON BROADVIN. 

